Okay... first off, this isn't a topic about how long the series has been running, because that's already obvious.
What I'm talking about is how much time has actually gone by in the series--i.e. just how long has Kagome been running around in the past with Inuyasha and co. searching for Shikon shards and the chance to kick Naraku's butt? Sometimes it seems like forever, and you'd certainly think it would have been at least a year (or getting close to that)... yet to the best of my knowledge, Kagome is still 15, which suggests otherwise.
Anyone have any guesses? Does anyone actually know when in "Inuyasha time" the show actually began (in other words, what day or even what season Kagome's birthday is)? The anime had at least one one filler episode (101) that had snow in it, so winter has probably hit at least once... but then again, they could have just been in a particularly cold area, for all I know. ::shrug::
We've seen Kagome return home anywhere from five to ten times in the manga (I'm not keeping track), and about the same in the anime, though the anime tends to drag those visits out longer, and included at least one visit home that was completely filler-ized. But obviously we haven't seen every single time she's gone back, and we don't know how long it is between average visits either, so this isn't exactly an ideal way of keeping track of things.
Neither is Inuyasha's human transformation during the new moon... we've only seen it happen four times (I think), but obviously things have been going on for more than four or five months, so we're not seeing all of his transformations, either. Which is a shame, to say the least (it could have been so easy... ::sigh::). Ah, well... just when was the last time we saw it happen naturally, anyway? We haven't had a new moon incident in forever.
If I had to make a guess based on what I know (which, as you can see, is pretty much... nothing), I'd say it's been close to a year. Despite the annoying little factors of Kagome's age and school situation.

